Linter.



' Patented Dec. 19,1899. M. SWENSN.

No. 639,3l3.

L l N T E R.

(Application filed July 9, 1897.)

3 Sheets-Sheet I` (No Model.)

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No. 639,3I3. Patented Dec. I9, |899.

M. SWENSUN.

LINTEB.

" (Application led July 9, 18E-'7.) (No Model.) 3 sneets-sheet .2.

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No. 639,313. Patented Dec. |9, |899.

M. SWENSN.

LINTER.

[Application filed July 9, 1897.) (N9 Model.) 3 Sheets-Sheet 3`VVitneSses.` Inventor.

Attorney we Hemus versus no.. Pumnlumm memNcToN, nv c llNrTn STATESPATENT Ormea.

MAGNUS SVENSON, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE AMERICAN COTTONCOMPANY, OF NEW YORK, N. Y.

LINTER.

SPECIFICATION forming part of Letters Patent No. 639,313, dated December19, 1899. l Application filed July 9, 1897. Serial No. 644,027. (Nomodel.) p

To LZZ whom it may concern:

Be it known that I, MAGNUS SWENSON, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illi- 5 nois,have invented certain new and useful Improvements in Linters; and I dohereby declare the following to be a full, clear, and eX- actdescription of the invention, which will enable others skilled in theart to which it to appertains to make and use the same.

My invention relates to various new and useful improvements inlintingmachines, by which is included mechanism for removing fromseed-cotton the long fiber or staple or I5 for removing the very shortfiber left on the seed after the ginning operation. My invention,therefore, is adapted for use both as a gin and as a linter, so called,but it is preferably to be used for the latter purpose.

2o Linters as they are now made occupy an intermediate position betweena gin and a delinter, receiving the seed from the gin and removing theshort ber therefrom, so as to leave upon the seed only the short velvety2 5 fuzz,which is ground off or otherwise removed by thedelinting-machine.

The objectsof my invention are to provide and produce a linter whichshall be cheap to construct and operate, efficient in use, and

3o which will require little or no attention.

Broadly considered, the invention consists of a linter havingalinting-chamberin which an essentially novel linting operation takesplace, said chamber being substantially 3 5 closed except at the inletand outlet thereof and having two oppositelydocated movable walls, eachcomposed of saws or analogous elements closely arranged together andgrooved rollers mounted between said saws.

4o The invention also consists in combining with the elements referredto an improved device for removing from the linter only the seed fromwhich the lint has been detached,

v as well as certain details of construction,which 45 will be more`fully hereinafter described and claimed.

For a better comprehension of my invention attention is directed to theaccompanying drawings, forming a part of this specifi- Figure 1 is avertical sectional view through the center of the device; Fig. 2, anelevation y from one side of the machine; Fig. 3, an elevation from theother side of the machine, and Fig. 4 a section on the line 4 4 of Fig.l. 55

In all of the above views corresponding parts are represented by thesame numerals of reference.

The frame of the machine may comprise two cast side frames l l, havingdepending 6o' legs or standards 2 and connected together by cross-frames3 3,suitably arranged. These side frames l l may be cast solid, so as tocomprise the closed sides of thelinting-chamber, or they may be skeletonframes, to which 65 wooden sides may be secured.

Mounted in the side frames on suitable shafts 4 are two series or gangsof lintingsaws, which I have designated 5, 6, 7, S, 9, and l0.' I showsix gangs of linting-saws ar- 7o ranged three in each row, but a greateror lesser number may be used. The gangs of linting-saws are preferablyarranged in the same vertical plane, and they, together with the groovedrollers, to be referred to, comprise 75 the front and rear walls of thelinting-chamber l1, which occupies the space between them and the sidesof the machine. Each gang of linting-saws comprises a large number ofcircular saws with very line teeth set 8o upon a shaft and separated bythin disks, as is well known. Mounted between each of the gangs oflinting-saws 5 and 6, 6 and 7, 8 and 9, and 9 and l0 is a grooved rollerl2, with the grooves of each of which the two adjacent 8 5 gangs oflnting-saws cooperate. Arranged beneath the gangs 7 is a correspondinggrooved roller 13, and above the gang 10 is a similar grooved roller le.All of the linting-saws and rollers referred to rotate in the 9o samedirection and preferably at the same peripheral speed, and further on Iwill describe mechanism for operating these elements.

Mounted at the bottom of the machine on a shaft 15 is a roller 1G,having longitudinal 95 pockets 17 in its periphery. This roller extendsbetween the side frames of the machine and works in close proximity tothe grooved roller 13 and the gang of linting-saws 8, so that itcomprises, essentially, the bottom of Ico the lin tin g-chamber. It alsois rotated in the same ldirection as the saws and at preferably the sameperipheral speed. The pockets 17 in the roller 16 are made sufficientlyshallow to accommodate a single seed from which the lint has beenremoved; but each pocket may be made wide enough to accommodate a numberof seeds side by side therein.

In order to preventlint from accumulating on the grooved roller 14, Iprovide a plate 18 in engagement. with the same, which plate may haveteeth therein entering the grooves in said roller. This plate byengaging with the roller 14 will remove therefrom any cotton which maytend to accumulate thereon.

The seed from the gin may be fed into the linting-chamber in anysuitable way, such as through a chute 19, arranged above thelinting-chamber, and,if desired, the linter may be mounted directlyadjacent to any form of gin and receive the seed directly therefrom bygravity, if beneath the gin, or in any other way if the linter islocated on the same fioor as the gin or above the same.

In order to remove the lint from the saws, I preferably make use ofblasts of air for this purpose, as has been suggested before, therebeing a single blast for each saw. For this purpose I may 'arrangeairconducting pipes 2O parallel with each gang of saws and on theoutside of the framework, said pipes having perforations thereincoincident with each saw, wherebya blast will be directed tangentiallyto each saw, as I have indicated in Fig. 1.

The saws and blast-pipes at the outside of the machine may be inclosedby a sheet-metal casing 2l, arranged in any suitable way at each sideand connected, for example, at the lower end to a liue 22,which conveysthe lint to a suitable condenser. If desired, sheet metal win gs ordeecting-plates 23 may be arranged within each casing 21 to separate theblasts of the different gangs of saws, and thereby overcome thepossibility of eddy-cu rrents formingin said casing.

In order to drive the saws, grooved rollers, and seed-expelling roller16, any suitable mechanical connections may be used, and in the drawingsI illustrate a convenient arrangement of devices for accomplishing thisresult.

Mounted above the machine is a countershaft 24, carrying two pulleys 25and 26 thereon appropriately disposed. The mechanism for driving thelinting-saws and seed-roller is arranged at one side of the machine, asshown in Fig. 2,while the mechanism for driving the grooved rollers isarranged at the other side of the machine, shown in Fig. 3.

Having reference to the first driving'mechanism, it may comprise thegear-wheels 27, mounted on the shafts of the gangs of lintingsaws andalso on the shaft of the seed-expelling roller 16, with intermediategears 28, which latter may run loose on the shafts of the groovedrollers 12 and 13 or upon bosses The intermediate gear that is locatedbetween the driving-gears for the seed-roller 16 and the saws 8 ismounted on a'stub-shaft or boss cast with one of the side frames, aswill be understood. The system of gearing referred to 'may be drivenfrom a pulley 29 and belt 30, extending from the driving-pulley 25.

For driving the grooved rollers 12, 13, and lll I prefer to employ abelt, since, owing to their small diameter, they necessarily rotate at aVery much higher rate of speed than the saws, although, as stated, theirperipheral speed preferably is the same as that of the saws.

Having reference to Fig. 3, I mount a pulley 31 on the shafts of thegrooved rollers 12, 13, and 14, and between each pair of saidpulleys isan idler 32, which may be carried on a stub-shaft secured to the sideframe or-on acontinuous shaft extending directly through thelinting-chamber and mounted in journals in both side frames.

33 is a belt running from the pulley 26 and passing over the pulleys 3land idlers 32, as l have shown, for'driving all of the pulleys 31 in thesame direction and at the same speed.

The operation of my improved linter will be readily understood and is asfollows, the saws, grooved rollers, and seed-roller rotating in thedirections indicated and at the proper speeds and the blasts from theair-pipes 2O being directed tangentially over the teeth of the saws: Theseed from the gin, or if the device is used as a gin then theseed-cotton itself, is introduced into the linting-chamber preferably soas to fill the same and is engaged by the saws, which remove the lintfrom the seed and carry the lint through the grooves of the groovedrollers. This lint will be blown o the saws by the blasts from theair-pipes into the iiues 22, from whence it will be conveyed to asuitable condenser or into a linting-room. The constant rotation of thesaws, grooved rollers, and seed-roller in the same direction will giveto the bulk of seed in the linting-` chamber a continued movement, inFig. 1 in the direction opposite to the hands of a clock, and thismovement will result in the constant presentation of new portions of themass to the action of the saws. By cooperating with each of the groovedrollers 12 two sets of gangs of saws the rollers will be always keptfree of cotton, so that cotton cannot accumulate thereon. Theseed-roller 16 working in close relation to the grooved roller 13 servesalso to keep that roller free from the accumulation of cotton, while theplate 18, as before stated, serves the same purpose for the groovedroller 14.-. As the lint is removed from the .seed the seed by theirweight gradually set- IOO IOS

IIO

saws 9 and swept back into the linting-chamber. In this way it will beseen that only the seed from which all lint has been removed will beexpelled from the machine.

NVhile I prefer to make use of the grooved rollers introduced betweenthe gangs of linting-saws, as thereby all possibility of the devicebecoming choked is entirely overcome, yet in a broad sense the inventionis not limited to said rollers, and a combination consisting of thegangs of saws arranged at opposite sides of the linting-chamber andcombined with a seed-expellin g roller or its equivalent may beemployed.

Having now described my invention, what I claim as new therein, anddesire to secure by Letters Patent, is as follows:

1. An improved gin or linter, comprising in combination two sets ofvertically-arranged gangs of saws, the space between said saws forming alinting-chamber open at the top through which the cotton may beintroduced, a corrugated roller at the lower end of said linting-chamberfor coperating with the lower gang of saws of one of the sets, and aroller between said corrugated roller and the lower gang of saws of theother set, substantially as set forth.

2. An improved gin or linter, comprising in combination two sets ofvertically-arranged gangs of saws, the space between said saws forming alinting-chamber open at the top through which the cotton may beintroduced, a grooved roller between each adjacent pair of gangs of sawsand with which the saws cooperate, a corrugated roller at the lower endof said linting-chamber for coperating with the lower gang of saws ofone of the sets, and

a roller between said corrugated roller and the lower gang of saws ofthe other set, substantially as set forth.

3. An improved gin or linter, comprising in combination two sets ofvertically-arranged gangs of saws, the space between said saws forming alinting-chamber open at `the top through which the cotton maybeintroduced, a corrugated roller at the lower end of said lintingchamberfor coperating with the lower gang of saws of one of the sets, arollerbetween said corrugated roller and the lower gang of saws of the otherset, and means outside of the machine for removing from the saws thelint detached thereby from the seed, substantially as set forth.

all. An improved gin or linter, comprising in combination two sets ofvertically-arranged gangs of saws, the space between said saws forming alinting-chamber open at the top through which the cotton may beintroduced, a corrugated roller at the lower end of said linting-chamberfor coperating with the lower gang of saws of one of the sets, a rollerbetween said corrugated roller and the lower gang of saws of the otherset, a closed casing surrounding the outside portions of the saws atboth sides of the machine, and blast-pipes in said casing for removingfrom the saws the lint detached from the seed, substantially as setforth.

This speciiication signed and witnessed this 3d day of May, 1897.

MAGNUS SWENSON.

Witnesses:

D. W. WALBURN, B. A. J oHNsToN.

